Update sitemap options in gatsby-config.js to weight pages we care about more #112
Description
See also: #111
We need to set up the page ranking in the site map somehow to be sensible. We might need a property on pages we can query in graphQL to get any non-default page weight but I haven't looked at the details of the plugin.
Ideally pages like the "about the bill", the calculator, etc should be ranked higher than middle of the eligibility flow, etc.
p.s. the sitemap doesn't generate in dev mode locally with npm run develop so you have to run npm run build to get a production build instead, or if you have a PR the netlify preview will have it.